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ALSA: hda - Add bdl_pos_adj option
[deliverable/linux.git] / sound / pci / hda / hda_intel.c
1 /*
2 *
3 * hda_intel.c - Implementation of primary alsa driver code base
4 * for Intel HD Audio.
5 *
6 * Copyright(c) 2004 Intel Corporation. All rights reserved.
7 *
8 * Copyright (c) 2004 Takashi Iwai <tiwai@suse.de>
9 * PeiSen Hou <pshou@realtek.com.tw>
10 *
11 * This program is free software; you can redistribute it and/or modify it
12 * under the terms of the GNU General Public License as published by the Free
13 * Software Foundation; either version 2 of the License, or (at your option)
14 * any later version.
15 *
16 * This program is distributed in the hope that it will be useful, but WITHOUT
17 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
18 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
19 * more details.
20 *
21 * You should have received a copy of the GNU General Public License along with
22 * this program; if not, write to the Free Software Foundation, Inc., 59
23 * Temple Place - Suite 330, Boston, MA 02111-1307, USA.
24 *
25 * CONTACTS:
26 *
27 * Matt Jared matt.jared@intel.com
28 * Andy Kopp andy.kopp@intel.com
29 * Dan Kogan dan.d.kogan@intel.com
30 *
31 * CHANGES:
32 *
33 * 2004.12.01 Major rewrite by tiwai, merged the work of pshou
34 *
35 */
36
37 #include <asm/io.h>
38 #include <linux/delay.h>
39 #include <linux/interrupt.h>
40 #include <linux/kernel.h>
41 #include <linux/module.h>
42 #include <linux/dma-mapping.h>
43 #include <linux/moduleparam.h>
44 #include <linux/init.h>
45 #include <linux/slab.h>
46 #include <linux/pci.h>
47 #include <linux/mutex.h>
48 #include <sound/core.h>
49 #include <sound/initval.h>
50 #include "hda_codec.h"
51
52
53 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;
54 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;
55 static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP;
56 static char *model[SNDRV_CARDS];
57 static int position_fix[SNDRV_CARDS];
58 static int probe_mask[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS-1)] = -1};
59 static int single_cmd;
60 static int enable_msi;
61 static int bdl_pos_adj = 1;
62
63 module_param_array(index, int, NULL, 0444);
64 MODULE_PARM_DESC(index, "Index value for Intel HD audio interface.");
65 module_param_array(id, charp, NULL, 0444);
66 MODULE_PARM_DESC(id, "ID string for Intel HD audio interface.");
67 module_param_array(enable, bool, NULL, 0444);
68 MODULE_PARM_DESC(enable, "Enable Intel HD audio interface.");
69 module_param_array(model, charp, NULL, 0444);
70 MODULE_PARM_DESC(model, "Use the given board model.");
71 module_param_array(position_fix, int, NULL, 0444);
72 MODULE_PARM_DESC(position_fix, "Fix DMA pointer "
73 "(0 = auto, 1 = none, 2 = POSBUF, 3 = FIFO size).");
74 module_param_array(probe_mask, int, NULL, 0444);
75 MODULE_PARM_DESC(probe_mask, "Bitmask to probe codecs (default = -1).");
76 module_param(single_cmd, bool, 0444);
77 MODULE_PARM_DESC(single_cmd, "Use single command to communicate with codecs "
78 "(for debugging only).");
79 module_param(enable_msi, int, 0444);
80 MODULE_PARM_DESC(enable_msi, "Enable Message Signaled Interrupt (MSI)");
81 module_param(bdl_pos_adj, int, 0644);
82 MODULE_PARM_DESC(bdl_pos_adj, "BDL position adjustment offset");
83
84 #ifdef CONFIG_SND_HDA_POWER_SAVE
85 /* power_save option is defined in hda_codec.c */
86
87 /* reset the HD-audio controller in power save mode.
88 * this may give more power-saving, but will take longer time to
89 * wake up.
90 */
91 static int power_save_controller = 1;
92 module_param(power_save_controller, bool, 0644);
93 MODULE_PARM_DESC(power_save_controller, "Reset controller in power save mode.");
94 #endif
95
96 MODULE_LICENSE("GPL");
97 MODULE_SUPPORTED_DEVICE("{{Intel, ICH6},"
98 "{Intel, ICH6M},"
99 "{Intel, ICH7},"
100 "{Intel, ESB2},"
101 "{Intel, ICH8},"
102 "{Intel, ICH9},"
103 "{Intel, ICH10},"
104 "{Intel, SCH},"
105 "{ATI, SB450},"
106 "{ATI, SB600},"
107 "{ATI, RS600},"
108 "{ATI, RS690},"
109 "{ATI, RS780},"
110 "{ATI, R600},"
111 "{ATI, RV630},"
112 "{ATI, RV610},"
113 "{ATI, RV670},"
114 "{ATI, RV635},"
115 "{ATI, RV620},"
116 "{ATI, RV770},"
117 "{VIA, VT8251},"
118 "{VIA, VT8237A},"
119 "{SiS, SIS966},"
120 "{ULI, M5461}}");
121 MODULE_DESCRIPTION("Intel HDA driver");
122
123 #define SFX "hda-intel: "
124
125
126 /*
127 * registers
128 */
129 #define ICH6_REG_GCAP 0x00
130 #define ICH6_REG_VMIN 0x02
131 #define ICH6_REG_VMAJ 0x03
132 #define ICH6_REG_OUTPAY 0x04
133 #define ICH6_REG_INPAY 0x06
134 #define ICH6_REG_GCTL 0x08
135 #define ICH6_REG_WAKEEN 0x0c
136 #define ICH6_REG_STATESTS 0x0e
137 #define ICH6_REG_GSTS 0x10
138 #define ICH6_REG_INTCTL 0x20
139 #define ICH6_REG_INTSTS 0x24
140 #define ICH6_REG_WALCLK 0x30
141 #define ICH6_REG_SYNC 0x34
142 #define ICH6_REG_CORBLBASE 0x40
143 #define ICH6_REG_CORBUBASE 0x44
144 #define ICH6_REG_CORBWP 0x48
145 #define ICH6_REG_CORBRP 0x4A
146 #define ICH6_REG_CORBCTL 0x4c
147 #define ICH6_REG_CORBSTS 0x4d
148 #define ICH6_REG_CORBSIZE 0x4e
149
150 #define ICH6_REG_RIRBLBASE 0x50
151 #define ICH6_REG_RIRBUBASE 0x54
152 #define ICH6_REG_RIRBWP 0x58
153 #define ICH6_REG_RINTCNT 0x5a
154 #define ICH6_REG_RIRBCTL 0x5c
155 #define ICH6_REG_RIRBSTS 0x5d
156 #define ICH6_REG_RIRBSIZE 0x5e
157
158 #define ICH6_REG_IC 0x60
159 #define ICH6_REG_IR 0x64
160 #define ICH6_REG_IRS 0x68
161 #define ICH6_IRS_VALID (1<<1)
162 #define ICH6_IRS_BUSY (1<<0)
163
164 #define ICH6_REG_DPLBASE 0x70
165 #define ICH6_REG_DPUBASE 0x74
166 #define ICH6_DPLBASE_ENABLE 0x1 /* Enable position buffer */
167
168 /* SD offset: SDI0=0x80, SDI1=0xa0, ... SDO3=0x160 */
169 enum { SDI0, SDI1, SDI2, SDI3, SDO0, SDO1, SDO2, SDO3 };
170
171 /* stream register offsets from stream base */
172 #define ICH6_REG_SD_CTL 0x00
173 #define ICH6_REG_SD_STS 0x03
174 #define ICH6_REG_SD_LPIB 0x04
175 #define ICH6_REG_SD_CBL 0x08
176 #define ICH6_REG_SD_LVI 0x0c
177 #define ICH6_REG_SD_FIFOW 0x0e
178 #define ICH6_REG_SD_FIFOSIZE 0x10
179 #define ICH6_REG_SD_FORMAT 0x12
180 #define ICH6_REG_SD_BDLPL 0x18
181 #define ICH6_REG_SD_BDLPU 0x1c
182
183 /* PCI space */
184 #define ICH6_PCIREG_TCSEL 0x44
185
186 /*
187 * other constants
188 */
189
190 /* max number of SDs */
191 /* ICH, ATI and VIA have 4 playback and 4 capture */
192 #define ICH6_NUM_CAPTURE 4
193 #define ICH6_NUM_PLAYBACK 4
194
195 /* ULI has 6 playback and 5 capture */
196 #define ULI_NUM_CAPTURE 5
197 #define ULI_NUM_PLAYBACK 6
198
199 /* ATI HDMI has 1 playback and 0 capture */
200 #define ATIHDMI_NUM_CAPTURE 0
201 #define ATIHDMI_NUM_PLAYBACK 1
202
203 /* TERA has 4 playback and 3 capture */
204 #define TERA_NUM_CAPTURE 3
205 #define TERA_NUM_PLAYBACK 4
206
207 /* this number is statically defined for simplicity */
208 #define MAX_AZX_DEV 16
209
210 /* max number of fragments - we may use more if allocating more pages for BDL */
211 #define BDL_SIZE 4096
212 #define AZX_MAX_BDL_ENTRIES (BDL_SIZE / 16)
213 #define AZX_MAX_FRAG 32
214 /* max buffer size - no h/w limit, you can increase as you like */
215 #define AZX_MAX_BUF_SIZE (1024*1024*1024)
216 /* max number of PCM devics per card */
217 #define AZX_MAX_PCMS 8
218
219 /* RIRB int mask: overrun[2], response[0] */
220 #define RIRB_INT_RESPONSE 0x01
221 #define RIRB_INT_OVERRUN 0x04
222 #define RIRB_INT_MASK 0x05
223
224 /* STATESTS int mask: SD2,SD1,SD0 */
225 #define AZX_MAX_CODECS 3
226 #define STATESTS_INT_MASK 0x07
227
228 /* SD_CTL bits */
229 #define SD_CTL_STREAM_RESET 0x01 /* stream reset bit */
230 #define SD_CTL_DMA_START 0x02 /* stream DMA start bit */
231 #define SD_CTL_STRIPE (3 << 16) /* stripe control */
232 #define SD_CTL_TRAFFIC_PRIO (1 << 18) /* traffic priority */
233 #define SD_CTL_DIR (1 << 19) /* bi-directional stream */
234 #define SD_CTL_STREAM_TAG_MASK (0xf << 20)
235 #define SD_CTL_STREAM_TAG_SHIFT 20
236
237 /* SD_CTL and SD_STS */
238 #define SD_INT_DESC_ERR 0x10 /* descriptor error interrupt */
239 #define SD_INT_FIFO_ERR 0x08 /* FIFO error interrupt */
240 #define SD_INT_COMPLETE 0x04 /* completion interrupt */
241 #define SD_INT_MASK (SD_INT_DESC_ERR|SD_INT_FIFO_ERR|\
242 SD_INT_COMPLETE)
243
244 /* SD_STS */
245 #define SD_STS_FIFO_READY 0x20 /* FIFO ready */
246
247 /* INTCTL and INTSTS */
248 #define ICH6_INT_ALL_STREAM 0xff /* all stream interrupts */
249 #define ICH6_INT_CTRL_EN 0x40000000 /* controller interrupt enable bit */
250 #define ICH6_INT_GLOBAL_EN 0x80000000 /* global interrupt enable bit */
251
252 /* GCTL unsolicited response enable bit */
253 #define ICH6_GCTL_UREN (1<<8)
254
255 /* GCTL reset bit */
256 #define ICH6_GCTL_RESET (1<<0)
257
258 /* CORB/RIRB control, read/write pointer */
259 #define ICH6_RBCTL_DMA_EN 0x02 /* enable DMA */
260 #define ICH6_RBCTL_IRQ_EN 0x01 /* enable IRQ */
261 #define ICH6_RBRWP_CLR 0x8000 /* read/write pointer clear */
262 /* below are so far hardcoded - should read registers in future */
263 #define ICH6_MAX_CORB_ENTRIES 256
264 #define ICH6_MAX_RIRB_ENTRIES 256
265
266 /* position fix mode */
267 enum {
268 POS_FIX_AUTO,
269 POS_FIX_NONE,
270 POS_FIX_POSBUF,
271 POS_FIX_FIFO,
272 };
273
274 /* Defines for ATI HD Audio support in SB450 south bridge */
275 #define ATI_SB450_HDAUDIO_MISC_CNTR2_ADDR 0x42
276 #define ATI_SB450_HDAUDIO_ENABLE_SNOOP 0x02
277
278 /* Defines for Nvidia HDA support */
279 #define NVIDIA_HDA_TRANSREG_ADDR 0x4e
280 #define NVIDIA_HDA_ENABLE_COHBITS 0x0f
281
282 /* Defines for Intel SCH HDA snoop control */
283 #define INTEL_SCH_HDA_DEVC 0x78
284 #define INTEL_SCH_HDA_DEVC_NOSNOOP (0x1<<11)
285
286
287 /*
288 */
289
290 struct azx_dev {
291 struct snd_dma_buffer bdl; /* BDL buffer */
292 u32 *posbuf; /* position buffer pointer */
293
294 unsigned int bufsize; /* size of the play buffer in bytes */
295 unsigned int period_bytes; /* size of the period in bytes */
296 unsigned int frags; /* number for period in the play buffer */
297 unsigned int fifo_size; /* FIFO size */
298
299 void __iomem *sd_addr; /* stream descriptor pointer */
300
301 u32 sd_int_sta_mask; /* stream int status mask */
302
303 /* pcm support */
304 struct snd_pcm_substream *substream; /* assigned substream,
305 * set in PCM open
306 */
307 unsigned int format_val; /* format value to be set in the
308 * controller and the codec
309 */
310 unsigned char stream_tag; /* assigned stream */
311 unsigned char index; /* stream index */
312
313 unsigned int opened :1;
314 unsigned int running :1;
315 unsigned int irq_pending :1;
316 unsigned int irq_ignore :1;
317 };
318
319 /* CORB/RIRB */
320 struct azx_rb {
321 u32 *buf; /* CORB/RIRB buffer
322 * Each CORB entry is 4byte, RIRB is 8byte
323 */
324 dma_addr_t addr; /* physical address of CORB/RIRB buffer */
325 /* for RIRB */
326 unsigned short rp, wp; /* read/write pointers */
327 int cmds; /* number of pending requests */
328 u32 res; /* last read value */
329 };
330
331 struct azx {
332 struct snd_card *card;
333 struct pci_dev *pci;
334
335 /* chip type specific */
336 int driver_type;
337 int playback_streams;
338 int playback_index_offset;
339 int capture_streams;
340 int capture_index_offset;
341 int num_streams;
342
343 /* pci resources */
344 unsigned long addr;
345 void __iomem *remap_addr;
346 int irq;
347
348 /* locks */
349 spinlock_t reg_lock;
350 struct mutex open_mutex;
351
352 /* streams (x num_streams) */
353 struct azx_dev *azx_dev;
354
355 /* PCM */
356 struct snd_pcm *pcm[AZX_MAX_PCMS];
357
358 /* HD codec */
359 unsigned short codec_mask;
360 struct hda_bus *bus;
361
362 /* CORB/RIRB */
363 struct azx_rb corb;
364 struct azx_rb rirb;
365
366 /* CORB/RIRB and position buffers */
367 struct snd_dma_buffer rb;
368 struct snd_dma_buffer posbuf;
369
370 /* flags */
371 int position_fix;
372 unsigned int running :1;
373 unsigned int initialized :1;
374 unsigned int single_cmd :1;
375 unsigned int polling_mode :1;
376 unsigned int msi :1;
377
378 /* for debugging */
379 unsigned int last_cmd; /* last issued command (to sync) */
380
381 /* for pending irqs */
382 struct work_struct irq_pending_work;
383 };
384
385 /* driver types */
386 enum {
387 AZX_DRIVER_ICH,
388 AZX_DRIVER_SCH,
389 AZX_DRIVER_ATI,
390 AZX_DRIVER_ATIHDMI,
391 AZX_DRIVER_VIA,
392 AZX_DRIVER_SIS,
393 AZX_DRIVER_ULI,
394 AZX_DRIVER_NVIDIA,
395 AZX_DRIVER_TERA,
396 };
397
398 static char *driver_short_names[] __devinitdata = {
399 [AZX_DRIVER_ICH] = "HDA Intel",
400 [AZX_DRIVER_SCH] = "HDA Intel MID",
401 [AZX_DRIVER_ATI] = "HDA ATI SB",
402 [AZX_DRIVER_ATIHDMI] = "HDA ATI HDMI",
403 [AZX_DRIVER_VIA] = "HDA VIA VT82xx",
404 [AZX_DRIVER_SIS] = "HDA SIS966",
405 [AZX_DRIVER_ULI] = "HDA ULI M5461",
406 [AZX_DRIVER_NVIDIA] = "HDA NVidia",
407 [AZX_DRIVER_TERA] = "HDA Teradici",
408 };
409
410 /*
411 * macros for easy use
412 */
413 #define azx_writel(chip,reg,value) \
414 writel(value, (chip)->remap_addr + ICH6_REG_##reg)
415 #define azx_readl(chip,reg) \
416 readl((chip)->remap_addr + ICH6_REG_##reg)
417 #define azx_writew(chip,reg,value) \
418 writew(value, (chip)->remap_addr + ICH6_REG_##reg)
419 #define azx_readw(chip,reg) \
420 readw((chip)->remap_addr + ICH6_REG_##reg)
421 #define azx_writeb(chip,reg,value) \
422 writeb(value, (chip)->remap_addr + ICH6_REG_##reg)
423 #define azx_readb(chip,reg) \
424 readb((chip)->remap_addr + ICH6_REG_##reg)
425
426 #define azx_sd_writel(dev,reg,value) \
427 writel(value, (dev)->sd_addr + ICH6_REG_##reg)
428 #define azx_sd_readl(dev,reg) \
429 readl((dev)->sd_addr + ICH6_REG_##reg)
430 #define azx_sd_writew(dev,reg,value) \
431 writew(value, (dev)->sd_addr + ICH6_REG_##reg)
432 #define azx_sd_readw(dev,reg) \
433 readw((dev)->sd_addr + ICH6_REG_##reg)
434 #define azx_sd_writeb(dev,reg,value) \
435 writeb(value, (dev)->sd_addr + ICH6_REG_##reg)
436 #define azx_sd_readb(dev,reg) \
437 readb((dev)->sd_addr + ICH6_REG_##reg)
438
439 /* for pcm support */
440 #define get_azx_dev(substream) (substream->runtime->private_data)
441
442 /* Get the upper 32bit of the given dma_addr_t
443 * Compiler should optimize and eliminate the code if dma_addr_t is 32bit
444 */
445 #define upper_32bit(addr) (sizeof(addr) > 4 ? (u32)((addr) >> 32) : (u32)0)
446
447 static int azx_acquire_irq(struct azx *chip, int do_disconnect);
448
449 /*
450 * Interface for HD codec
451 */
452
453 /*
454 * CORB / RIRB interface
455 */
456 static int azx_alloc_cmd_io(struct azx *chip)
457 {
458 int err;
459
460 /* single page (at least 4096 bytes) must suffice for both ringbuffes */
461 err = snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV,
462 snd_dma_pci_data(chip->pci),
463 PAGE_SIZE, &chip->rb);
464 if (err < 0) {
465 snd_printk(KERN_ERR SFX "cannot allocate CORB/RIRB\n");
466 return err;
467 }
468 return 0;
469 }
470
471 static void azx_init_cmd_io(struct azx *chip)
472 {
473 /* CORB set up */
474 chip->corb.addr = chip->rb.addr;
475 chip->corb.buf = (u32 *)chip->rb.area;
476 azx_writel(chip, CORBLBASE, (u32)chip->corb.addr);
477 azx_writel(chip, CORBUBASE, upper_32bit(chip->corb.addr));
478
479 /* set the corb size to 256 entries (ULI requires explicitly) */
480 azx_writeb(chip, CORBSIZE, 0x02);
481 /* set the corb write pointer to 0 */
482 azx_writew(chip, CORBWP, 0);
483 /* reset the corb hw read pointer */
484 azx_writew(chip, CORBRP, ICH6_RBRWP_CLR);
485 /* enable corb dma */
486 azx_writeb(chip, CORBCTL, ICH6_RBCTL_DMA_EN);
487
488 /* RIRB set up */
489 chip->rirb.addr = chip->rb.addr + 2048;
490 chip->rirb.buf = (u32 *)(chip->rb.area + 2048);
491 azx_writel(chip, RIRBLBASE, (u32)chip->rirb.addr);
492 azx_writel(chip, RIRBUBASE, upper_32bit(chip->rirb.addr));
493
494 /* set the rirb size to 256 entries (ULI requires explicitly) */
495 azx_writeb(chip, RIRBSIZE, 0x02);
496 /* reset the rirb hw write pointer */
497 azx_writew(chip, RIRBWP, ICH6_RBRWP_CLR);
498 /* set N=1, get RIRB response interrupt for new entry */
499 azx_writew(chip, RINTCNT, 1);
500 /* enable rirb dma and response irq */
501 azx_writeb(chip, RIRBCTL, ICH6_RBCTL_DMA_EN | ICH6_RBCTL_IRQ_EN);
502 chip->rirb.rp = chip->rirb.cmds = 0;
503 }
504
505 static void azx_free_cmd_io(struct azx *chip)
506 {
507 /* disable ringbuffer DMAs */
508 azx_writeb(chip, RIRBCTL, 0);
509 azx_writeb(chip, CORBCTL, 0);
510 }
511
512 /* send a command */
513 static int azx_corb_send_cmd(struct hda_codec *codec, u32 val)
514 {
515 struct azx *chip = codec->bus->private_data;
516 unsigned int wp;
517
518 /* add command to corb */
519 wp = azx_readb(chip, CORBWP);
520 wp++;
521 wp %= ICH6_MAX_CORB_ENTRIES;
522
523 spin_lock_irq(&chip->reg_lock);
524 chip->rirb.cmds++;
525 chip->corb.buf[wp] = cpu_to_le32(val);
526 azx_writel(chip, CORBWP, wp);
527 spin_unlock_irq(&chip->reg_lock);
528
529 return 0;
530 }
531
532 #define ICH6_RIRB_EX_UNSOL_EV (1<<4)
533
534 /* retrieve RIRB entry - called from interrupt handler */
535 static void azx_update_rirb(struct azx *chip)
536 {
537 unsigned int rp, wp;
538 u32 res, res_ex;
539
540 wp = azx_readb(chip, RIRBWP);
541 if (wp == chip->rirb.wp)
542 return;
543 chip->rirb.wp = wp;
544
545 while (chip->rirb.rp != wp) {
546 chip->rirb.rp++;
547 chip->rirb.rp %= ICH6_MAX_RIRB_ENTRIES;
548
549 rp = chip->rirb.rp << 1; /* an RIRB entry is 8-bytes */
550 res_ex = le32_to_cpu(chip->rirb.buf[rp + 1]);
551 res = le32_to_cpu(chip->rirb.buf[rp]);
552 if (res_ex & ICH6_RIRB_EX_UNSOL_EV)
553 snd_hda_queue_unsol_event(chip->bus, res, res_ex);
554 else if (chip->rirb.cmds) {
555 chip->rirb.res = res;
556 smp_wmb();
557 chip->rirb.cmds--;
558 }
559 }
560 }
561
562 /* receive a response */
563 static unsigned int azx_rirb_get_response(struct hda_codec *codec)
564 {
565 struct azx *chip = codec->bus->private_data;
566 unsigned long timeout;
567
568 again:
569 timeout = jiffies + msecs_to_jiffies(1000);
570 for (;;) {
571 if (chip->polling_mode) {
572 spin_lock_irq(&chip->reg_lock);
573 azx_update_rirb(chip);
574 spin_unlock_irq(&chip->reg_lock);
575 }
576 if (!chip->rirb.cmds) {
577 smp_rmb();
578 return chip->rirb.res; /* the last value */
579 }
580 if (time_after(jiffies, timeout))
581 break;
582 if (codec->bus->needs_damn_long_delay)
583 msleep(2); /* temporary workaround */
584 else {
585 udelay(10);
586 cond_resched();
587 }
588 }
589
590 if (chip->msi) {
591 snd_printk(KERN_WARNING "hda_intel: No response from codec, "
592 "disabling MSI: last cmd=0x%08x\n", chip->last_cmd);
593 free_irq(chip->irq, chip);
594 chip->irq = -1;
595 pci_disable_msi(chip->pci);
596 chip->msi = 0;
597 if (azx_acquire_irq(chip, 1) < 0)
598 return -1;
599 goto again;
600 }
601
602 if (!chip->polling_mode) {
603 snd_printk(KERN_WARNING "hda_intel: azx_get_response timeout, "
604 "switching to polling mode: last cmd=0x%08x\n",
605 chip->last_cmd);
606 chip->polling_mode = 1;
607 goto again;
608 }
609
610 snd_printk(KERN_ERR "hda_intel: azx_get_response timeout, "
611 "switching to single_cmd mode: last cmd=0x%08x\n",
612 chip->last_cmd);
613 chip->rirb.rp = azx_readb(chip, RIRBWP);
614 chip->rirb.cmds = 0;
615 /* switch to single_cmd mode */
616 chip->single_cmd = 1;
617 azx_free_cmd_io(chip);
618 return -1;
619 }
620
621 /*
622 * Use the single immediate command instead of CORB/RIRB for simplicity
623 *
624 * Note: according to Intel, this is not preferred use. The command was
625 * intended for the BIOS only, and may get confused with unsolicited
626 * responses. So, we shouldn't use it for normal operation from the
627 * driver.
628 * I left the codes, however, for debugging/testing purposes.
629 */
630
631 /* send a command */
632 static int azx_single_send_cmd(struct hda_codec *codec, u32 val)
633 {
634 struct azx *chip = codec->bus->private_data;
635 int timeout = 50;
636
637 while (timeout--) {
638 /* check ICB busy bit */
639 if (!((azx_readw(chip, IRS) & ICH6_IRS_BUSY))) {
640 /* Clear IRV valid bit */
641 azx_writew(chip, IRS, azx_readw(chip, IRS) |
642 ICH6_IRS_VALID);
643 azx_writel(chip, IC, val);
644 azx_writew(chip, IRS, azx_readw(chip, IRS) |
645 ICH6_IRS_BUSY);
646 return 0;
647 }
648 udelay(1);
649 }
650 if (printk_ratelimit())
651 snd_printd(SFX "send_cmd timeout: IRS=0x%x, val=0x%x\n",
652 azx_readw(chip, IRS), val);
653 return -EIO;
654 }
655
656 /* receive a response */
657 static unsigned int azx_single_get_response(struct hda_codec *codec)
658 {
659 struct azx *chip = codec->bus->private_data;
660 int timeout = 50;
661
662 while (timeout--) {
663 /* check IRV busy bit */
664 if (azx_readw(chip, IRS) & ICH6_IRS_VALID)
665 return azx_readl(chip, IR);
666 udelay(1);
667 }
668 if (printk_ratelimit())
669 snd_printd(SFX "get_response timeout: IRS=0x%x\n",
670 azx_readw(chip, IRS));
671 return (unsigned int)-1;
672 }
673
674 /*
675 * The below are the main callbacks from hda_codec.
676 *
677 * They are just the skeleton to call sub-callbacks according to the
678 * current setting of chip->single_cmd.
679 */
680
681 /* send a command */
682 static int azx_send_cmd(struct hda_codec *codec, hda_nid_t nid,
683 int direct, unsigned int verb,
684 unsigned int para)
685 {
686 struct azx *chip = codec->bus->private_data;
687 u32 val;
688
689 val = (u32)(codec->addr & 0x0f) << 28;
690 val |= (u32)direct << 27;
691 val |= (u32)nid << 20;
692 val |= verb << 8;
693 val |= para;
694 chip->last_cmd = val;
695
696 if (chip->single_cmd)
697 return azx_single_send_cmd(codec, val);
698 else
699 return azx_corb_send_cmd(codec, val);
700 }
701
702 /* get a response */
703 static unsigned int azx_get_response(struct hda_codec *codec)
704 {
705 struct azx *chip = codec->bus->private_data;
706 if (chip->single_cmd)
707 return azx_single_get_response(codec);
708 else
709 return azx_rirb_get_response(codec);
710 }
711
712 #ifdef CONFIG_SND_HDA_POWER_SAVE
713 static void azx_power_notify(struct hda_codec *codec);
714 #endif
715
716 /* reset codec link */
717 static int azx_reset(struct azx *chip)
718 {
719 int count;
720
721 /* clear STATESTS */
722 azx_writeb(chip, STATESTS, STATESTS_INT_MASK);
723
724 /* reset controller */
725 azx_writel(chip, GCTL, azx_readl(chip, GCTL) & ~ICH6_GCTL_RESET);
726
727 count = 50;
728 while (azx_readb(chip, GCTL) && --count)
729 msleep(1);
730
731 /* delay for >= 100us for codec PLL to settle per spec
732 * Rev 0.9 section 5.5.1
733 */
734 msleep(1);
735
736 /* Bring controller out of reset */
737 azx_writeb(chip, GCTL, azx_readb(chip, GCTL) | ICH6_GCTL_RESET);
738
739 count = 50;
740 while (!azx_readb(chip, GCTL) && --count)
741 msleep(1);
742
743 /* Brent Chartrand said to wait >= 540us for codecs to initialize */
744 msleep(1);
745
746 /* check to see if controller is ready */
747 if (!azx_readb(chip, GCTL)) {
748 snd_printd("azx_reset: controller not ready!\n");
749 return -EBUSY;
750 }
751
752 /* Accept unsolicited responses */
753 azx_writel(chip, GCTL, azx_readl(chip, GCTL) | ICH6_GCTL_UREN);
754
755 /* detect codecs */
756 if (!chip->codec_mask) {
757 chip->codec_mask = azx_readw(chip, STATESTS);
758 snd_printdd("codec_mask = 0x%x\n", chip->codec_mask);
759 }
760
761 return 0;
762 }
763
764
765 /*
766 * Lowlevel interface
767 */
768
769 /* enable interrupts */
770 static void azx_int_enable(struct azx *chip)
771 {
772 /* enable controller CIE and GIE */
773 azx_writel(chip, INTCTL, azx_readl(chip, INTCTL) |
774 ICH6_INT_CTRL_EN | ICH6_INT_GLOBAL_EN);
775 }
776
777 /* disable interrupts */
778 static void azx_int_disable(struct azx *chip)
779 {
780 int i;
781
782 /* disable interrupts in stream descriptor */
783 for (i = 0; i < chip->num_streams; i++) {
784 struct azx_dev *azx_dev = &chip->azx_dev[i];
785 azx_sd_writeb(azx_dev, SD_CTL,
786 azx_sd_readb(azx_dev, SD_CTL) & ~SD_INT_MASK);
787 }
788
789 /* disable SIE for all streams */
790 azx_writeb(chip, INTCTL, 0);
791
792 /* disable controller CIE and GIE */
793 azx_writel(chip, INTCTL, azx_readl(chip, INTCTL) &
794 ~(ICH6_INT_CTRL_EN | ICH6_INT_GLOBAL_EN));
795 }
796
797 /* clear interrupts */
798 static void azx_int_clear(struct azx *chip)
799 {
800 int i;
801
802 /* clear stream status */
803 for (i = 0; i < chip->num_streams; i++) {
804 struct azx_dev *azx_dev = &chip->azx_dev[i];
805 azx_sd_writeb(azx_dev, SD_STS, SD_INT_MASK);
806 }
807
808 /* clear STATESTS */
809 azx_writeb(chip, STATESTS, STATESTS_INT_MASK);
810
811 /* clear rirb status */
812 azx_writeb(chip, RIRBSTS, RIRB_INT_MASK);
813
814 /* clear int status */
815 azx_writel(chip, INTSTS, ICH6_INT_CTRL_EN | ICH6_INT_ALL_STREAM);
816 }
817
818 /* start a stream */
819 static void azx_stream_start(struct azx *chip, struct azx_dev *azx_dev)
820 {
821 /* enable SIE */
822 azx_writeb(chip, INTCTL,
823 azx_readb(chip, INTCTL) | (1 << azx_dev->index));
824 /* set DMA start and interrupt mask */
825 azx_sd_writeb(azx_dev, SD_CTL, azx_sd_readb(azx_dev, SD_CTL) |
826 SD_CTL_DMA_START | SD_INT_MASK);
827 }
828
829 /* stop a stream */
830 static void azx_stream_stop(struct azx *chip, struct azx_dev *azx_dev)
831 {
832 /* stop DMA */
833 azx_sd_writeb(azx_dev, SD_CTL, azx_sd_readb(azx_dev, SD_CTL) &
834 ~(SD_CTL_DMA_START | SD_INT_MASK));
835 azx_sd_writeb(azx_dev, SD_STS, SD_INT_MASK); /* to be sure */
836 /* disable SIE */
837 azx_writeb(chip, INTCTL,
838 azx_readb(chip, INTCTL) & ~(1 << azx_dev->index));
839 }
840
841
842 /*
843 * reset and start the controller registers
844 */
845 static void azx_init_chip(struct azx *chip)
846 {
847 if (chip->initialized)
848 return;
849
850 /* reset controller */
851 azx_reset(chip);
852
853 /* initialize interrupts */
854 azx_int_clear(chip);
855 azx_int_enable(chip);
856
857 /* initialize the codec command I/O */
858 if (!chip->single_cmd)
859 azx_init_cmd_io(chip);
860
861 /* program the position buffer */
862 azx_writel(chip, DPLBASE, (u32)chip->posbuf.addr);
863 azx_writel(chip, DPUBASE, upper_32bit(chip->posbuf.addr));
864
865 chip->initialized = 1;
866 }
867
868 /*
869 * initialize the PCI registers
870 */
871 /* update bits in a PCI register byte */
872 static void update_pci_byte(struct pci_dev *pci, unsigned int reg,
873 unsigned char mask, unsigned char val)
874 {
875 unsigned char data;
876
877 pci_read_config_byte(pci, reg, &data);
878 data &= ~mask;
879 data |= (val & mask);
880 pci_write_config_byte(pci, reg, data);
881 }
882
883 static void azx_init_pci(struct azx *chip)
884 {
885 unsigned short snoop;
886
887 /* Clear bits 0-2 of PCI register TCSEL (at offset 0x44)
888 * TCSEL == Traffic Class Select Register, which sets PCI express QOS
889 * Ensuring these bits are 0 clears playback static on some HD Audio
890 * codecs
891 */
892 update_pci_byte(chip->pci, ICH6_PCIREG_TCSEL, 0x07, 0);
893
894 switch (chip->driver_type) {
895 case AZX_DRIVER_ATI:
896 /* For ATI SB450 azalia HD audio, we need to enable snoop */
897 update_pci_byte(chip->pci,
898 ATI_SB450_HDAUDIO_MISC_CNTR2_ADDR,
899 0x07, ATI_SB450_HDAUDIO_ENABLE_SNOOP);
900 break;
901 case AZX_DRIVER_NVIDIA:
902 /* For NVIDIA HDA, enable snoop */
903 update_pci_byte(chip->pci,
904 NVIDIA_HDA_TRANSREG_ADDR,
905 0x0f, NVIDIA_HDA_ENABLE_COHBITS);
906 break;
907 case AZX_DRIVER_SCH:
908 pci_read_config_word(chip->pci, INTEL_SCH_HDA_DEVC, &snoop);
909 if (snoop & INTEL_SCH_HDA_DEVC_NOSNOOP) {
910 pci_write_config_word(chip->pci, INTEL_SCH_HDA_DEVC, \
911 snoop & (~INTEL_SCH_HDA_DEVC_NOSNOOP));
912 pci_read_config_word(chip->pci,
913 INTEL_SCH_HDA_DEVC, &snoop);
914 snd_printdd("HDA snoop disabled, enabling ... %s\n",\
915 (snoop & INTEL_SCH_HDA_DEVC_NOSNOOP) \
916 ? "Failed" : "OK");
917 }
918 break;
919
920 }
921 }
922
923
924 static int azx_position_ok(struct azx *chip, struct azx_dev *azx_dev);
925
926 /*
927 * interrupt handler
928 */
929 static irqreturn_t azx_interrupt(int irq, void *dev_id)
930 {
931 struct azx *chip = dev_id;
932 struct azx_dev *azx_dev;
933 u32 status;
934 int i;
935
936 spin_lock(&chip->reg_lock);
937
938 status = azx_readl(chip, INTSTS);
939 if (status == 0) {
940 spin_unlock(&chip->reg_lock);
941 return IRQ_NONE;
942 }
943
944 for (i = 0; i < chip->num_streams; i++) {
945 azx_dev = &chip->azx_dev[i];
946 if (status & azx_dev->sd_int_sta_mask) {
947 azx_sd_writeb(azx_dev, SD_STS, SD_INT_MASK);
948 if (!azx_dev->substream || !azx_dev->running)
949 continue;
950 /* ignore the first dummy IRQ (due to pos_adj) */
951 if (azx_dev->irq_ignore) {
952 azx_dev->irq_ignore = 0;
953 continue;
954 }
955 /* check whether this IRQ is really acceptable */
956 if (azx_position_ok(chip, azx_dev)) {
957 azx_dev->irq_pending = 0;
958 spin_unlock(&chip->reg_lock);
959 snd_pcm_period_elapsed(azx_dev->substream);
960 spin_lock(&chip->reg_lock);
961 } else {
962 /* bogus IRQ, process it later */
963 azx_dev->irq_pending = 1;
964 schedule_work(&chip->irq_pending_work);
965 }
966 }
967 }
968
969 /* clear rirb int */
970 status = azx_readb(chip, RIRBSTS);
971 if (status & RIRB_INT_MASK) {
972 if (!chip->single_cmd && (status & RIRB_INT_RESPONSE))
973 azx_update_rirb(chip);
974 azx_writeb(chip, RIRBSTS, RIRB_INT_MASK);
975 }
976
977 #if 0
978 /* clear state status int */
979 if (azx_readb(chip, STATESTS) & 0x04)
980 azx_writeb(chip, STATESTS, 0x04);
981 #endif
982 spin_unlock(&chip->reg_lock);
983
984 return IRQ_HANDLED;
985 }
986
987
988 /*
989 * set up a BDL entry
990 */
991 static int setup_bdle(struct snd_pcm_substream *substream,
992 struct azx_dev *azx_dev, u32 **bdlp,
993 int ofs, int size, int with_ioc)
994 {
995 struct snd_sg_buf *sgbuf = snd_pcm_substream_sgbuf(substream);
996 u32 *bdl = *bdlp;
997
998 while (size > 0) {
999 dma_addr_t addr;
1000 int chunk;
1001
1002 if (azx_dev->frags >= AZX_MAX_BDL_ENTRIES)
1003 return -EINVAL;
1004
1005 addr = snd_pcm_sgbuf_get_addr(sgbuf, ofs);
1006 /* program the address field of the BDL entry */
1007 bdl[0] = cpu_to_le32((u32)addr);
1008 bdl[1] = cpu_to_le32(upper_32bit(addr));
1009 /* program the size field of the BDL entry */
1010 chunk = PAGE_SIZE - (ofs % PAGE_SIZE);
1011 if (size < chunk)
1012 chunk = size;
1013 bdl[2] = cpu_to_le32(chunk);
1014 /* program the IOC to enable interrupt
1015 * only when the whole fragment is processed
1016 */
1017 size -= chunk;
1018 bdl[3] = (size || !with_ioc) ? 0 : cpu_to_le32(0x01);
1019 bdl += 4;
1020 azx_dev->frags++;
1021 ofs += chunk;
1022 }
1023 *bdlp = bdl;
1024 return ofs;
1025 }
1026
1027 /*
1028 * set up BDL entries
1029 */
1030 static int azx_setup_periods(struct snd_pcm_substream *substream,
1031 struct azx_dev *azx_dev)
1032 {
1033 u32 *bdl;
1034 int i, ofs, periods, period_bytes;
1035 int pos_adj = 0;
1036
1037 /* reset BDL address */
1038 azx_sd_writel(azx_dev, SD_BDLPL, 0);
1039 azx_sd_writel(azx_dev, SD_BDLPU, 0);
1040
1041 period_bytes = snd_pcm_lib_period_bytes(substream);
1042 azx_dev->period_bytes = period_bytes;
1043 periods = azx_dev->bufsize / period_bytes;
1044
1045 /* program the initial BDL entries */
1046 bdl = (u32 *)azx_dev->bdl.area;
1047 ofs = 0;
1048 azx_dev->frags = 0;
1049 azx_dev->irq_ignore = 0;
1050 if (bdl_pos_adj > 0) {
1051 struct snd_pcm_runtime *runtime = substream->runtime;
1052 pos_adj = (bdl_pos_adj * runtime->rate + 47999) / 48000;
1053 if (!pos_adj)
1054 pos_adj = 1;
1055 pos_adj = frames_to_bytes(runtime, pos_adj);
1056 if (pos_adj >= period_bytes) {
1057 snd_printk(KERN_WARNING "Too big adjustment %d\n",
1058 bdl_pos_adj);
1059 pos_adj = 0;
1060 } else {
1061 ofs = setup_bdle(substream, azx_dev,
1062 &bdl, ofs, pos_adj, 1);
1063 if (ofs < 0)
1064 goto error;
1065 azx_dev->irq_ignore = 1;
1066 }
1067 }
1068 for (i = 0; i < periods; i++) {
1069 if (i == periods - 1 && pos_adj)
1070 ofs = setup_bdle(substream, azx_dev, &bdl, ofs,
1071 period_bytes - pos_adj, 0);
1072 else
1073 ofs = setup_bdle(substream, azx_dev, &bdl, ofs,
1074 period_bytes, 1);
1075 if (ofs < 0)
1076 goto error;
1077 }
1078 return 0;
1079
1080 error:
1081 snd_printk(KERN_ERR "Too many BDL entries: buffer=%d, period=%d\n",
1082 azx_dev->bufsize, period_bytes);
1083 /* reset */
1084 azx_sd_writel(azx_dev, SD_BDLPL, 0);
1085 azx_sd_writel(azx_dev, SD_BDLPU, 0);
1086 return -EINVAL;
1087 }
1088
1089 /*
1090 * set up the SD for streaming
1091 */
1092 static int azx_setup_controller(struct azx *chip, struct azx_dev *azx_dev)
1093 {
1094 unsigned char val;
1095 int timeout;
1096
1097 /* make sure the run bit is zero for SD */
1098 azx_sd_writeb(azx_dev, SD_CTL, azx_sd_readb(azx_dev, SD_CTL) &
1099 ~SD_CTL_DMA_START);
1100 /* reset stream */
1101 azx_sd_writeb(azx_dev, SD_CTL, azx_sd_readb(azx_dev, SD_CTL) |
1102 SD_CTL_STREAM_RESET);
1103 udelay(3);
1104 timeout = 300;
1105 while (!((val = azx_sd_readb(azx_dev, SD_CTL)) & SD_CTL_STREAM_RESET) &&
1106 --timeout)
1107 ;
1108 val &= ~SD_CTL_STREAM_RESET;
1109 azx_sd_writeb(azx_dev, SD_CTL, val);
1110 udelay(3);
1111
1112 timeout = 300;
1113 /* waiting for hardware to report that the stream is out of reset */
1114 while (((val = azx_sd_readb(azx_dev, SD_CTL)) & SD_CTL_STREAM_RESET) &&
1115 --timeout)
1116 ;
1117
1118 /* program the stream_tag */
1119 azx_sd_writel(azx_dev, SD_CTL,
1120 (azx_sd_readl(azx_dev, SD_CTL) & ~SD_CTL_STREAM_TAG_MASK)|
1121 (azx_dev->stream_tag << SD_CTL_STREAM_TAG_SHIFT));
1122
1123 /* program the length of samples in cyclic buffer */
1124 azx_sd_writel(azx_dev, SD_CBL, azx_dev->bufsize);
1125
1126 /* program the stream format */
1127 /* this value needs to be the same as the one programmed */
1128 azx_sd_writew(azx_dev, SD_FORMAT, azx_dev->format_val);
1129
1130 /* program the stream LVI (last valid index) of the BDL */
1131 azx_sd_writew(azx_dev, SD_LVI, azx_dev->frags - 1);
1132
1133 /* program the BDL address */
1134 /* lower BDL address */
1135 azx_sd_writel(azx_dev, SD_BDLPL, (u32)azx_dev->bdl.addr);
1136 /* upper BDL address */
1137 azx_sd_writel(azx_dev, SD_BDLPU, upper_32bit(azx_dev->bdl.addr));
1138
1139 /* enable the position buffer */
1140 if (chip->position_fix == POS_FIX_POSBUF ||
1141 chip->position_fix == POS_FIX_AUTO) {
1142 if (!(azx_readl(chip, DPLBASE) & ICH6_DPLBASE_ENABLE))
1143 azx_writel(chip, DPLBASE,
1144 (u32)chip->posbuf.addr | ICH6_DPLBASE_ENABLE);
1145 }
1146
1147 /* set the interrupt enable bits in the descriptor control register */
1148 azx_sd_writel(azx_dev, SD_CTL,
1149 azx_sd_readl(azx_dev, SD_CTL) | SD_INT_MASK);
1150
1151 return 0;
1152 }
1153
1154
1155 /*
1156 * Codec initialization
1157 */
1158
1159 static unsigned int azx_max_codecs[] __devinitdata = {
1160 [AZX_DRIVER_ICH] = 4, /* Some ICH9 boards use SD3 */
1161 [AZX_DRIVER_SCH] = 3,
1162 [AZX_DRIVER_ATI] = 4,
1163 [AZX_DRIVER_ATIHDMI] = 4,
1164 [AZX_DRIVER_VIA] = 3, /* FIXME: correct? */
1165 [AZX_DRIVER_SIS] = 3, /* FIXME: correct? */
1166 [AZX_DRIVER_ULI] = 3, /* FIXME: correct? */
1167 [AZX_DRIVER_NVIDIA] = 3, /* FIXME: correct? */
1168 [AZX_DRIVER_TERA] = 1,
1169 };
1170
1171 static int __devinit azx_codec_create(struct azx *chip, const char *model,
1172 unsigned int codec_probe_mask)
1173 {
1174 struct hda_bus_template bus_temp;
1175 int c, codecs, audio_codecs, err;
1176
1177 memset(&bus_temp, 0, sizeof(bus_temp));
1178 bus_temp.private_data = chip;
1179 bus_temp.modelname = model;
1180 bus_temp.pci = chip->pci;
1181 bus_temp.ops.command = azx_send_cmd;
1182 bus_temp.ops.get_response = azx_get_response;
1183 #ifdef CONFIG_SND_HDA_POWER_SAVE
1184 bus_temp.ops.pm_notify = azx_power_notify;
1185 #endif
1186
1187 err = snd_hda_bus_new(chip->card, &bus_temp, &chip->bus);
1188 if (err < 0)
1189 return err;
1190
1191 codecs = audio_codecs = 0;
1192 for (c = 0; c < AZX_MAX_CODECS; c++) {
1193 if ((chip->codec_mask & (1 << c)) & codec_probe_mask) {
1194 struct hda_codec *codec;
1195 err = snd_hda_codec_new(chip->bus, c, &codec);
1196 if (err < 0)
1197 continue;
1198 codecs++;
1199 if (codec->afg)
1200 audio_codecs++;
1201 }
1202 }
1203 if (!audio_codecs) {
1204 /* probe additional slots if no codec is found */
1205 for (; c < azx_max_codecs[chip->driver_type]; c++) {
1206 if ((chip->codec_mask & (1 << c)) & codec_probe_mask) {
1207 err = snd_hda_codec_new(chip->bus, c, NULL);
1208 if (err < 0)
1209 continue;
1210 codecs++;
1211 }
1212 }
1213 }
1214 if (!codecs) {
1215 snd_printk(KERN_ERR SFX "no codecs initialized\n");
1216 return -ENXIO;
1217 }
1218
1219 return 0;
1220 }
1221
1222
1223 /*
1224 * PCM support
1225 */
1226
1227 /* assign a stream for the PCM */
1228 static inline struct azx_dev *azx_assign_device(struct azx *chip, int stream)
1229 {
1230 int dev, i, nums;
1231 if (stream == SNDRV_PCM_STREAM_PLAYBACK) {
1232 dev = chip->playback_index_offset;
1233 nums = chip->playback_streams;
1234 } else {
1235 dev = chip->capture_index_offset;
1236 nums = chip->capture_streams;
1237 }
1238 for (i = 0; i < nums; i++, dev++)
1239 if (!chip->azx_dev[dev].opened) {
1240 chip->azx_dev[dev].opened = 1;
1241 return &chip->azx_dev[dev];
1242 }
1243 return NULL;
1244 }
1245
1246 /* release the assigned stream */
1247 static inline void azx_release_device(struct azx_dev *azx_dev)
1248 {
1249 azx_dev->opened = 0;
1250 }
1251
1252 static struct snd_pcm_hardware azx_pcm_hw = {
1253 .info = (SNDRV_PCM_INFO_MMAP |
1254 SNDRV_PCM_INFO_INTERLEAVED |
1255 SNDRV_PCM_INFO_BLOCK_TRANSFER |
1256 SNDRV_PCM_INFO_MMAP_VALID |
1257 /* No full-resume yet implemented */
1258 /* SNDRV_PCM_INFO_RESUME |*/
1259 SNDRV_PCM_INFO_PAUSE |
1260 SNDRV_PCM_INFO_SYNC_START),
1261 .formats = SNDRV_PCM_FMTBIT_S16_LE,
1262 .rates = SNDRV_PCM_RATE_48000,
1263 .rate_min = 48000,
1264 .rate_max = 48000,
1265 .channels_min = 2,
1266 .channels_max = 2,
1267 .buffer_bytes_max = AZX_MAX_BUF_SIZE,
1268 .period_bytes_min = 128,
1269 .period_bytes_max = AZX_MAX_BUF_SIZE / 2,
1270 .periods_min = 2,
1271 .periods_max = AZX_MAX_FRAG,
1272 .fifo_size = 0,
1273 };
1274
1275 struct azx_pcm {
1276 struct azx *chip;
1277 struct hda_codec *codec;
1278 struct hda_pcm_stream *hinfo[2];
1279 };
1280
1281 static int azx_pcm_open(struct snd_pcm_substream *substream)
1282 {
1283 struct azx_pcm *apcm = snd_pcm_substream_chip(substream);
1284 struct hda_pcm_stream *hinfo = apcm->hinfo[substream->stream];
1285 struct azx *chip = apcm->chip;
1286 struct azx_dev *azx_dev;
1287 struct snd_pcm_runtime *runtime = substream->runtime;
1288 unsigned long flags;
1289 int err;
1290
1291 mutex_lock(&chip->open_mutex);
1292 azx_dev = azx_assign_device(chip, substream->stream);
1293 if (azx_dev == NULL) {
1294 mutex_unlock(&chip->open_mutex);
1295 return -EBUSY;
1296 }
1297 runtime->hw = azx_pcm_hw;
1298 runtime->hw.channels_min = hinfo->channels_min;
1299 runtime->hw.channels_max = hinfo->channels_max;
1300 runtime->hw.formats = hinfo->formats;
1301 runtime->hw.rates = hinfo->rates;
1302 snd_pcm_limit_hw_rates(runtime);
1303 snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS);
1304 snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_BUFFER_BYTES,
1305 128);
1306 snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_BYTES,
1307 128);
1308 snd_hda_power_up(apcm->codec);
1309 err = hinfo->ops.open(hinfo, apcm->codec, substream);
1310 if (err < 0) {
1311 azx_release_device(azx_dev);
1312 snd_hda_power_down(apcm->codec);
1313 mutex_unlock(&chip->open_mutex);
1314 return err;
1315 }
1316 spin_lock_irqsave(&chip->reg_lock, flags);
1317 azx_dev->substream = substream;
1318 azx_dev->running = 0;
1319 spin_unlock_irqrestore(&chip->reg_lock, flags);
1320
1321 runtime->private_data = azx_dev;
1322 snd_pcm_set_sync(substream);
1323 mutex_unlock(&chip->open_mutex);
1324 return 0;
1325 }
1326
1327 static int azx_pcm_close(struct snd_pcm_substream *substream)
1328 {
1329 struct azx_pcm *apcm = snd_pcm_substream_chip(substream);
1330 struct hda_pcm_stream *hinfo = apcm->hinfo[substream->stream];
1331 struct azx *chip = apcm->chip;
1332 struct azx_dev *azx_dev = get_azx_dev(substream);
1333 unsigned long flags;
1334
1335 mutex_lock(&chip->open_mutex);
1336 spin_lock_irqsave(&chip->reg_lock, flags);
1337 azx_dev->substream = NULL;
1338 azx_dev->running = 0;
1339 spin_unlock_irqrestore(&chip->reg_lock, flags);
1340 azx_release_device(azx_dev);
1341 hinfo->ops.close(hinfo, apcm->codec, substream);
1342 snd_hda_power_down(apcm->codec);
1343 mutex_unlock(&chip->open_mutex);
1344 return 0;
1345 }
1346
1347 static int azx_pcm_hw_params(struct snd_pcm_substream *substream,
1348 struct snd_pcm_hw_params *hw_params)
1349 {
1350 return snd_pcm_lib_malloc_pages(substream,
1351 params_buffer_bytes(hw_params));
1352 }
1353
1354 static int azx_pcm_hw_free(struct snd_pcm_substream *substream)
1355 {
1356 struct azx_pcm *apcm = snd_pcm_substream_chip(substream);
1357 struct azx_dev *azx_dev = get_azx_dev(substream);
1358 struct hda_pcm_stream *hinfo = apcm->hinfo[substream->stream];
1359
1360 /* reset BDL address */
1361 azx_sd_writel(azx_dev, SD_BDLPL, 0);
1362 azx_sd_writel(azx_dev, SD_BDLPU, 0);
1363 azx_sd_writel(azx_dev, SD_CTL, 0);
1364
1365 hinfo->ops.cleanup(hinfo, apcm->codec, substream);
1366
1367 return snd_pcm_lib_free_pages(substream);
1368 }
1369
1370 static int azx_pcm_prepare(struct snd_pcm_substream *substream)
1371 {
1372 struct azx_pcm *apcm = snd_pcm_substream_chip(substream);
1373 struct azx *chip = apcm->chip;
1374 struct azx_dev *azx_dev = get_azx_dev(substream);
1375 struct hda_pcm_stream *hinfo = apcm->hinfo[substream->stream];
1376 struct snd_pcm_runtime *runtime = substream->runtime;
1377
1378 azx_dev->bufsize = snd_pcm_lib_buffer_bytes(substream);
1379 azx_dev->format_val = snd_hda_calc_stream_format(runtime->rate,
1380 runtime->channels,
1381 runtime->format,
1382 hinfo->maxbps);
1383 if (!azx_dev->format_val) {
1384 snd_printk(KERN_ERR SFX
1385 "invalid format_val, rate=%d, ch=%d, format=%d\n",
1386 runtime->rate, runtime->channels, runtime->format);
1387 return -EINVAL;
1388 }
1389
1390 snd_printdd("azx_pcm_prepare: bufsize=0x%x, format=0x%x\n",
1391 azx_dev->bufsize, azx_dev->format_val);
1392 if (azx_setup_periods(substream, azx_dev) < 0)
1393 return -EINVAL;
1394 azx_setup_controller(chip, azx_dev);
1395 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
1396 azx_dev->fifo_size = azx_sd_readw(azx_dev, SD_FIFOSIZE) + 1;
1397 else
1398 azx_dev->fifo_size = 0;
1399
1400 return hinfo->ops.prepare(hinfo, apcm->codec, azx_dev->stream_tag,
1401 azx_dev->format_val, substream);
1402 }
1403
1404 static int azx_pcm_trigger(struct snd_pcm_substream *substream, int cmd)
1405 {
1406 struct azx_pcm *apcm = snd_pcm_substream_chip(substream);
1407 struct azx *chip = apcm->chip;
1408 struct azx_dev *azx_dev;
1409 struct snd_pcm_substream *s;
1410 int start, nsync = 0, sbits = 0;
1411 int nwait, timeout;
1412
1413 switch (cmd) {
1414 case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
1415 case SNDRV_PCM_TRIGGER_RESUME:
1416 case SNDRV_PCM_TRIGGER_START:
1417 start = 1;
1418 break;
1419 case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
1420 case SNDRV_PCM_TRIGGER_SUSPEND:
1421 case SNDRV_PCM_TRIGGER_STOP:
1422 start = 0;
1423 break;
1424 default:
1425 return -EINVAL;
1426 }
1427
1428 snd_pcm_group_for_each_entry(s, substream) {
1429 if (s->pcm->card != substream->pcm->card)
1430 continue;
1431 azx_dev = get_azx_dev(s);
1432 sbits |= 1 << azx_dev->index;
1433 nsync++;
1434 snd_pcm_trigger_done(s, substream);
1435 }
1436
1437 spin_lock(&chip->reg_lock);
1438 if (nsync > 1) {
1439 /* first, set SYNC bits of corresponding streams */
1440 azx_writel(chip, SYNC, azx_readl(chip, SYNC) | sbits);
1441 }
1442 snd_pcm_group_for_each_entry(s, substream) {
1443 if (s->pcm->card != substream->pcm->card)
1444 continue;
1445 azx_dev = get_azx_dev(s);
1446 if (start)
1447 azx_stream_start(chip, azx_dev);
1448 else
1449 azx_stream_stop(chip, azx_dev);
1450 azx_dev->running = start;
1451 }
1452 spin_unlock(&chip->reg_lock);
1453 if (start) {
1454 if (nsync == 1)
1455 return 0;
1456 /* wait until all FIFOs get ready */
1457 for (timeout = 5000; timeout; timeout--) {
1458 nwait = 0;
1459 snd_pcm_group_for_each_entry(s, substream) {
1460 if (s->pcm->card != substream->pcm->card)
1461 continue;
1462 azx_dev = get_azx_dev(s);
1463 if (!(azx_sd_readb(azx_dev, SD_STS) &
1464 SD_STS_FIFO_READY))
1465 nwait++;
1466 }
1467 if (!nwait)
1468 break;
1469 cpu_relax();
1470 }
1471 } else {
1472 /* wait until all RUN bits are cleared */
1473 for (timeout = 5000; timeout; timeout--) {
1474 nwait = 0;
1475 snd_pcm_group_for_each_entry(s, substream) {
1476 if (s->pcm->card != substream->pcm->card)
1477 continue;
1478 azx_dev = get_azx_dev(s);
1479 if (azx_sd_readb(azx_dev, SD_CTL) &
1480 SD_CTL_DMA_START)
1481 nwait++;
1482 }
1483 if (!nwait)
1484 break;
1485 cpu_relax();
1486 }
1487 }
1488 if (nsync > 1) {
1489 spin_lock(&chip->reg_lock);
1490 /* reset SYNC bits */
1491 azx_writel(chip, SYNC, azx_readl(chip, SYNC) & ~sbits);
1492 spin_unlock(&chip->reg_lock);
1493 }
1494 return 0;
1495 }
1496
1497 static unsigned int azx_get_position(struct azx *chip,
1498 struct azx_dev *azx_dev)
1499 {
1500 unsigned int pos;
1501
1502 if (chip->position_fix == POS_FIX_POSBUF ||
1503 chip->position_fix == POS_FIX_AUTO) {
1504 /* use the position buffer */
1505 pos = le32_to_cpu(*azx_dev->posbuf);
1506 } else {
1507 /* read LPIB */
1508 pos = azx_sd_readl(azx_dev, SD_LPIB);
1509 if (chip->position_fix == POS_FIX_FIFO)
1510 pos += azx_dev->fifo_size;
1511 }
1512 if (pos >= azx_dev->bufsize)
1513 pos = 0;
1514 return pos;
1515 }
1516
1517 static snd_pcm_uframes_t azx_pcm_pointer(struct snd_pcm_substream *substream)
1518 {
1519 struct azx_pcm *apcm = snd_pcm_substream_chip(substream);
1520 struct azx *chip = apcm->chip;
1521 struct azx_dev *azx_dev = get_azx_dev(substream);
1522 return bytes_to_frames(substream->runtime,
1523 azx_get_position(chip, azx_dev));
1524 }
1525
1526 /*
1527 * Check whether the current DMA position is acceptable for updating
1528 * periods. Returns non-zero if it's OK.
1529 *
1530 * Many HD-audio controllers appear pretty inaccurate about
1531 * the update-IRQ timing. The IRQ is issued before actually the
1532 * data is processed. So, we need to process it afterwords in a
1533 * workqueue.
1534 */
1535 static int azx_position_ok(struct azx *chip, struct azx_dev *azx_dev)
1536 {
1537 unsigned int pos;
1538
1539 pos = azx_get_position(chip, azx_dev);
1540 if (chip->position_fix == POS_FIX_AUTO) {
1541 if (!pos) {
1542 printk(KERN_WARNING
1543 "hda-intel: Invalid position buffer, "
1544 "using LPIB read method instead.\n");
1545 chip->position_fix = POS_FIX_NONE;
1546 pos = azx_get_position(chip, azx_dev);
1547 } else
1548 chip->position_fix = POS_FIX_POSBUF;
1549 }
1550
1551 if (pos % azx_dev->period_bytes > azx_dev->period_bytes / 2)
1552 return 0; /* NG - it's below the period boundary */
1553 return 1; /* OK, it's fine */
1554 }
1555
1556 /*
1557 * The work for pending PCM period updates.
1558 */
1559 static void azx_irq_pending_work(struct work_struct *work)
1560 {
1561 struct azx *chip = container_of(work, struct azx, irq_pending_work);
1562 int i, pending;
1563
1564 for (;;) {
1565 pending = 0;
1566 spin_lock_irq(&chip->reg_lock);
1567 for (i = 0; i < chip->num_streams; i++) {
1568 struct azx_dev *azx_dev = &chip->azx_dev[i];
1569 if (!azx_dev->irq_pending ||
1570 !azx_dev->substream ||
1571 !azx_dev->running)
1572 continue;
1573 if (azx_position_ok(chip, azx_dev)) {
1574 azx_dev->irq_pending = 0;
1575 spin_unlock(&chip->reg_lock);
1576 snd_pcm_period_elapsed(azx_dev->substream);
1577 spin_lock(&chip->reg_lock);
1578 } else
1579 pending++;
1580 }
1581 spin_unlock_irq(&chip->reg_lock);
1582 if (!pending)
1583 return;
1584 cond_resched();
1585 }
1586 }
1587
1588 /* clear irq_pending flags and assure no on-going workq */
1589 static void azx_clear_irq_pending(struct azx *chip)
1590 {
1591 int i;
1592
1593 spin_lock_irq(&chip->reg_lock);
1594 for (i = 0; i < chip->num_streams; i++)
1595 chip->azx_dev[i].irq_pending = 0;
1596 spin_unlock_irq(&chip->reg_lock);
1597 flush_scheduled_work();
1598 }
1599
1600 static struct snd_pcm_ops azx_pcm_ops = {
1601 .open = azx_pcm_open,
1602 .close = azx_pcm_close,
1603 .ioctl = snd_pcm_lib_ioctl,
1604 .hw_params = azx_pcm_hw_params,
1605 .hw_free = azx_pcm_hw_free,
1606 .prepare = azx_pcm_prepare,
1607 .trigger = azx_pcm_trigger,
1608 .pointer = azx_pcm_pointer,
1609 .page = snd_pcm_sgbuf_ops_page,
1610 };
1611
1612 static void azx_pcm_free(struct snd_pcm *pcm)
1613 {
1614 kfree(pcm->private_data);
1615 }
1616
1617 static int __devinit create_codec_pcm(struct azx *chip, struct hda_codec *codec,
1618 struct hda_pcm *cpcm)
1619 {
1620 int err;
1621 struct snd_pcm *pcm;
1622 struct azx_pcm *apcm;
1623
1624 /* if no substreams are defined for both playback and capture,
1625 * it's just a placeholder. ignore it.
1626 */
1627 if (!cpcm->stream[0].substreams && !cpcm->stream[1].substreams)
1628 return 0;
1629
1630 snd_assert(cpcm->name, return -EINVAL);
1631
1632 err = snd_pcm_new(chip->card, cpcm->name, cpcm->device,
1633 cpcm->stream[0].substreams,
1634 cpcm->stream[1].substreams,
1635 &pcm);
1636 if (err < 0)
1637 return err;
1638 strcpy(pcm->name, cpcm->name);
1639 apcm = kmalloc(sizeof(*apcm), GFP_KERNEL);
1640 if (apcm == NULL)
1641 return -ENOMEM;
1642 apcm->chip = chip;
1643 apcm->codec = codec;
1644 apcm->hinfo[0] = &cpcm->stream[0];
1645 apcm->hinfo[1] = &cpcm->stream[1];
1646 pcm->private_data = apcm;
1647 pcm->private_free = azx_pcm_free;
1648 if (cpcm->stream[0].substreams)
1649 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &azx_pcm_ops);
1650 if (cpcm->stream[1].substreams)
1651 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &azx_pcm_ops);
1652 snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV_SG,
1653 snd_dma_pci_data(chip->pci),
1654 1024 * 64, 1024 * 1024);
1655 chip->pcm[cpcm->device] = pcm;
1656 return 0;
1657 }
1658
1659 static int __devinit azx_pcm_create(struct azx *chip)
1660 {
1661 static const char *dev_name[HDA_PCM_NTYPES] = {
1662 "Audio", "SPDIF", "HDMI", "Modem"
1663 };
1664 /* starting device index for each PCM type */
1665 static int dev_idx[HDA_PCM_NTYPES] = {
1666 [HDA_PCM_TYPE_AUDIO] = 0,
1667 [HDA_PCM_TYPE_SPDIF] = 1,
1668 [HDA_PCM_TYPE_HDMI] = 3,
1669 [HDA_PCM_TYPE_MODEM] = 6
1670 };
1671 /* normal audio device indices; not linear to keep compatibility */
1672 static int audio_idx[4] = { 0, 2, 4, 5 };
1673 struct hda_codec *codec;
1674 int c, err;
1675 int num_devs[HDA_PCM_NTYPES];
1676
1677 err = snd_hda_build_pcms(chip->bus);
1678 if (err < 0)
1679 return err;
1680
1681 /* create audio PCMs */
1682 memset(num_devs, 0, sizeof(num_devs));
1683 list_for_each_entry(codec, &chip->bus->codec_list, list) {
1684 for (c = 0; c < codec->num_pcms; c++) {
1685 struct hda_pcm *cpcm = &codec->pcm_info[c];
1686 int type = cpcm->pcm_type;
1687 switch (type) {
1688 case HDA_PCM_TYPE_AUDIO:
1689 if (num_devs[type] >= ARRAY_SIZE(audio_idx)) {
1690 snd_printk(KERN_WARNING
1691 "Too many audio devices\n");
1692 continue;
1693 }
1694 cpcm->device = audio_idx[num_devs[type]];
1695 break;
1696 case HDA_PCM_TYPE_SPDIF:
1697 case HDA_PCM_TYPE_HDMI:
1698 case HDA_PCM_TYPE_MODEM:
1699 if (num_devs[type]) {
1700 snd_printk(KERN_WARNING
1701 "%s already defined\n",
1702 dev_name[type]);
1703 continue;
1704 }
1705 cpcm->device = dev_idx[type];
1706 break;
1707 default:
1708 snd_printk(KERN_WARNING
1709 "Invalid PCM type %d\n", type);
1710 continue;
1711 }
1712 num_devs[type]++;
1713 err = create_codec_pcm(chip, codec, cpcm);
1714 if (err < 0)
1715 return err;
1716 }
1717 }
1718 return 0;
1719 }
1720
1721 /*
1722 * mixer creation - all stuff is implemented in hda module
1723 */
1724 static int __devinit azx_mixer_create(struct azx *chip)
1725 {
1726 return snd_hda_build_controls(chip->bus);
1727 }
1728
1729
1730 /*
1731 * initialize SD streams
1732 */
1733 static int __devinit azx_init_stream(struct azx *chip)
1734 {
1735 int i;
1736
1737 /* initialize each stream (aka device)
1738 * assign the starting bdl address to each stream (device)
1739 * and initialize
1740 */
1741 for (i = 0; i < chip->num_streams; i++) {
1742 struct azx_dev *azx_dev = &chip->azx_dev[i];
1743 azx_dev->posbuf = (u32 __iomem *)(chip->posbuf.area + i * 8);
1744 /* offset: SDI0=0x80, SDI1=0xa0, ... SDO3=0x160 */
1745 azx_dev->sd_addr = chip->remap_addr + (0x20 * i + 0x80);
1746 /* int mask: SDI0=0x01, SDI1=0x02, ... SDO3=0x80 */
1747 azx_dev->sd_int_sta_mask = 1 << i;
1748 /* stream tag: must be non-zero and unique */
1749 azx_dev->index = i;
1750 azx_dev->stream_tag = i + 1;
1751 }
1752
1753 return 0;
1754 }
1755
1756 static int azx_acquire_irq(struct azx *chip, int do_disconnect)
1757 {
1758 if (request_irq(chip->pci->irq, azx_interrupt,
1759 chip->msi ? 0 : IRQF_SHARED,
1760 "HDA Intel", chip)) {
1761 printk(KERN_ERR "hda-intel: unable to grab IRQ %d, "
1762 "disabling device\n", chip->pci->irq);
1763 if (do_disconnect)
1764 snd_card_disconnect(chip->card);
1765 return -1;
1766 }
1767 chip->irq = chip->pci->irq;
1768 pci_intx(chip->pci, !chip->msi);
1769 return 0;
1770 }
1771
1772
1773 static void azx_stop_chip(struct azx *chip)
1774 {
1775 if (!chip->initialized)
1776 return;
1777
1778 /* disable interrupts */
1779 azx_int_disable(chip);
1780 azx_int_clear(chip);
1781
1782 /* disable CORB/RIRB */
1783 azx_free_cmd_io(chip);
1784
1785 /* disable position buffer */
1786 azx_writel(chip, DPLBASE, 0);
1787 azx_writel(chip, DPUBASE, 0);
1788
1789 chip->initialized = 0;
1790 }
1791
1792 #ifdef CONFIG_SND_HDA_POWER_SAVE
1793 /* power-up/down the controller */
1794 static void azx_power_notify(struct hda_codec *codec)
1795 {
1796 struct azx *chip = codec->bus->private_data;
1797 struct hda_codec *c;
1798 int power_on = 0;
1799
1800 list_for_each_entry(c, &codec->bus->codec_list, list) {
1801 if (c->power_on) {
1802 power_on = 1;
1803 break;
1804 }
1805 }
1806 if (power_on)
1807 azx_init_chip(chip);
1808 else if (chip->running && power_save_controller)
1809 azx_stop_chip(chip);
1810 }
1811 #endif /* CONFIG_SND_HDA_POWER_SAVE */
1812
1813 #ifdef CONFIG_PM
1814 /*
1815 * power management
1816 */
1817 static int azx_suspend(struct pci_dev *pci, pm_message_t state)
1818 {
1819 struct snd_card *card = pci_get_drvdata(pci);
1820 struct azx *chip = card->private_data;
1821 int i;
1822
1823 snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
1824 azx_clear_irq_pending(chip);
1825 for (i = 0; i < AZX_MAX_PCMS; i++)
1826 snd_pcm_suspend_all(chip->pcm[i]);
1827 if (chip->initialized)
1828 snd_hda_suspend(chip->bus, state);
1829 azx_stop_chip(chip);
1830 if (chip->irq >= 0) {
1831 free_irq(chip->irq, chip);
1832 chip->irq = -1;
1833 }
1834 if (chip->msi)
1835 pci_disable_msi(chip->pci);
1836 pci_disable_device(pci);
1837 pci_save_state(pci);
1838 pci_set_power_state(pci, pci_choose_state(pci, state));
1839 return 0;
1840 }
1841
1842 static int azx_resume(struct pci_dev *pci)
1843 {
1844 struct snd_card *card = pci_get_drvdata(pci);
1845 struct azx *chip = card->private_data;
1846
1847 pci_set_power_state(pci, PCI_D0);
1848 pci_restore_state(pci);
1849 if (pci_enable_device(pci) < 0) {
1850 printk(KERN_ERR "hda-intel: pci_enable_device failed, "
1851 "disabling device\n");
1852 snd_card_disconnect(card);
1853 return -EIO;
1854 }
1855 pci_set_master(pci);
1856 if (chip->msi)
1857 if (pci_enable_msi(pci) < 0)
1858 chip->msi = 0;
1859 if (azx_acquire_irq(chip, 1) < 0)
1860 return -EIO;
1861 azx_init_pci(chip);
1862
1863 if (snd_hda_codecs_inuse(chip->bus))
1864 azx_init_chip(chip);
1865
1866 snd_hda_resume(chip->bus);
1867 snd_power_change_state(card, SNDRV_CTL_POWER_D0);
1868 return 0;
1869 }
1870 #endif /* CONFIG_PM */
1871
1872
1873 /*
1874 * destructor
1875 */
1876 static int azx_free(struct azx *chip)
1877 {
1878 int i;
1879
1880 if (chip->initialized) {
1881 azx_clear_irq_pending(chip);
1882 for (i = 0; i < chip->num_streams; i++)
1883 azx_stream_stop(chip, &chip->azx_dev[i]);
1884 azx_stop_chip(chip);
1885 }
1886
1887 if (chip->irq >= 0)
1888 free_irq(chip->irq, (void*)chip);
1889 if (chip->msi)
1890 pci_disable_msi(chip->pci);
1891 if (chip->remap_addr)
1892 iounmap(chip->remap_addr);
1893
1894 if (chip->azx_dev) {
1895 for (i = 0; i < chip->num_streams; i++)
1896 if (chip->azx_dev[i].bdl.area)
1897 snd_dma_free_pages(&chip->azx_dev[i].bdl);
1898 }
1899 if (chip->rb.area)
1900 snd_dma_free_pages(&chip->rb);
1901 if (chip->posbuf.area)
1902 snd_dma_free_pages(&chip->posbuf);
1903 pci_release_regions(chip->pci);
1904 pci_disable_device(chip->pci);
1905 kfree(chip->azx_dev);
1906 kfree(chip);
1907
1908 return 0;
1909 }
1910
1911 static int azx_dev_free(struct snd_device *device)
1912 {
1913 return azx_free(device->device_data);
1914 }
1915
1916 /*
1917 * white/black-listing for position_fix
1918 */
1919 static struct snd_pci_quirk position_fix_list[] __devinitdata = {
1920 SND_PCI_QUIRK(0x1028, 0x01cc, "Dell D820", POS_FIX_NONE),
1921 SND_PCI_QUIRK(0x1028, 0x01de, "Dell Precision 390", POS_FIX_NONE),
1922 SND_PCI_QUIRK(0x1043, 0x813d, "ASUS P5AD2", POS_FIX_NONE),
1923 {}
1924 };
1925
1926 static int __devinit check_position_fix(struct azx *chip, int fix)
1927 {
1928 const struct snd_pci_quirk *q;
1929
1930 if (fix == POS_FIX_AUTO) {
1931 q = snd_pci_quirk_lookup(chip->pci, position_fix_list);
1932 if (q) {
1933 printk(KERN_INFO
1934 "hda_intel: position_fix set to %d "
1935 "for device %04x:%04x\n",
1936 q->value, q->subvendor, q->subdevice);
1937 return q->value;
1938 }
1939 }
1940 return fix;
1941 }
1942
1943 /*
1944 * black-lists for probe_mask
1945 */
1946 static struct snd_pci_quirk probe_mask_list[] __devinitdata = {
1947 /* Thinkpad often breaks the controller communication when accessing
1948 * to the non-working (or non-existing) modem codec slot.
1949 */
1950 SND_PCI_QUIRK(0x1014, 0x05b7, "Thinkpad Z60", 0x01),
1951 SND_PCI_QUIRK(0x17aa, 0x2010, "Thinkpad X/T/R60", 0x01),
1952 SND_PCI_QUIRK(0x17aa, 0x20ac, "Thinkpad X/T/R61", 0x01),
1953 {}
1954 };
1955
1956 static void __devinit check_probe_mask(struct azx *chip, int dev)
1957 {
1958 const struct snd_pci_quirk *q;
1959
1960 if (probe_mask[dev] == -1) {
1961 q = snd_pci_quirk_lookup(chip->pci, probe_mask_list);
1962 if (q) {
1963 printk(KERN_INFO
1964 "hda_intel: probe_mask set to 0x%x "
1965 "for device %04x:%04x\n",
1966 q->value, q->subvendor, q->subdevice);
1967 probe_mask[dev] = q->value;
1968 }
1969 }
1970 }
1971
1972
1973 /*
1974 * constructor
1975 */
1976 static int __devinit azx_create(struct snd_card *card, struct pci_dev *pci,
1977 int dev, int driver_type,
1978 struct azx **rchip)
1979 {
1980 struct azx *chip;
1981 int i, err;
1982 unsigned short gcap;
1983 static struct snd_device_ops ops = {
1984 .dev_free = azx_dev_free,
1985 };
1986
1987 *rchip = NULL;
1988
1989 err = pci_enable_device(pci);
1990 if (err < 0)
1991 return err;
1992
1993 chip = kzalloc(sizeof(*chip), GFP_KERNEL);
1994 if (!chip) {
1995 snd_printk(KERN_ERR SFX "cannot allocate chip\n");
1996 pci_disable_device(pci);
1997 return -ENOMEM;
1998 }
1999
2000 spin_lock_init(&chip->reg_lock);
2001 mutex_init(&chip->open_mutex);
2002 chip->card = card;
2003 chip->pci = pci;
2004 chip->irq = -1;
2005 chip->driver_type = driver_type;
2006 chip->msi = enable_msi;
2007 INIT_WORK(&chip->irq_pending_work, azx_irq_pending_work);
2008
2009 chip->position_fix = check_position_fix(chip, position_fix[dev]);
2010 check_probe_mask(chip, dev);
2011
2012 chip->single_cmd = single_cmd;
2013
2014 #if BITS_PER_LONG != 64
2015 /* Fix up base address on ULI M5461 */
2016 if (chip->driver_type == AZX_DRIVER_ULI) {
2017 u16 tmp3;
2018 pci_read_config_word(pci, 0x40, &tmp3);
2019 pci_write_config_word(pci, 0x40, tmp3 | 0x10);
2020 pci_write_config_dword(pci, PCI_BASE_ADDRESS_1, 0);
2021 }
2022 #endif
2023
2024 err = pci_request_regions(pci, "ICH HD audio");
2025 if (err < 0) {
2026 kfree(chip);
2027 pci_disable_device(pci);
2028 return err;
2029 }
2030
2031 chip->addr = pci_resource_start(pci, 0);
2032 chip->remap_addr = ioremap_nocache(chip->addr, pci_resource_len(pci,0));
2033 if (chip->remap_addr == NULL) {
2034 snd_printk(KERN_ERR SFX "ioremap error\n");
2035 err = -ENXIO;
2036 goto errout;
2037 }
2038
2039 if (chip->msi)
2040 if (pci_enable_msi(pci) < 0)
2041 chip->msi = 0;
2042
2043 if (azx_acquire_irq(chip, 0) < 0) {
2044 err = -EBUSY;
2045 goto errout;
2046 }
2047
2048 pci_set_master(pci);
2049 synchronize_irq(chip->irq);
2050
2051 gcap = azx_readw(chip, GCAP);
2052 snd_printdd("chipset global capabilities = 0x%x\n", gcap);
2053
2054 /* allow 64bit DMA address if supported by H/W */
2055 if ((gcap & 0x01) && !pci_set_dma_mask(pci, DMA_64BIT_MASK))
2056 pci_set_consistent_dma_mask(pci, DMA_64BIT_MASK);
2057
2058 /* read number of streams from GCAP register instead of using
2059 * hardcoded value
2060 */
2061 chip->capture_streams = (gcap >> 8) & 0x0f;
2062 chip->playback_streams = (gcap >> 12) & 0x0f;
2063 if (!chip->playback_streams && !chip->capture_streams) {
2064 /* gcap didn't give any info, switching to old method */
2065
2066 switch (chip->driver_type) {
2067 case AZX_DRIVER_ULI:
2068 chip->playback_streams = ULI_NUM_PLAYBACK;
2069 chip->capture_streams = ULI_NUM_CAPTURE;
2070 break;
2071 case AZX_DRIVER_ATIHDMI:
2072 chip->playback_streams = ATIHDMI_NUM_PLAYBACK;
2073 chip->capture_streams = ATIHDMI_NUM_CAPTURE;
2074 break;
2075 default:
2076 chip->playback_streams = ICH6_NUM_PLAYBACK;
2077 chip->capture_streams = ICH6_NUM_CAPTURE;
2078 break;
2079 }
2080 }
2081 chip->capture_index_offset = 0;
2082 chip->playback_index_offset = chip->capture_streams;
2083 chip->num_streams = chip->playback_streams + chip->capture_streams;
2084 chip->azx_dev = kcalloc(chip->num_streams, sizeof(*chip->azx_dev),
2085 GFP_KERNEL);
2086 if (!chip->azx_dev) {
2087 snd_printk(KERN_ERR "cannot malloc azx_dev\n");
2088 goto errout;
2089 }
2090
2091 for (i = 0; i < chip->num_streams; i++) {
2092 /* allocate memory for the BDL for each stream */
2093 err = snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV,
2094 snd_dma_pci_data(chip->pci),
2095 BDL_SIZE, &chip->azx_dev[i].bdl);
2096 if (err < 0) {
2097 snd_printk(KERN_ERR SFX "cannot allocate BDL\n");
2098 goto errout;
2099 }
2100 }
2101 /* allocate memory for the position buffer */
2102 err = snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV,
2103 snd_dma_pci_data(chip->pci),
2104 chip->num_streams * 8, &chip->posbuf);
2105 if (err < 0) {
2106 snd_printk(KERN_ERR SFX "cannot allocate posbuf\n");
2107 goto errout;
2108 }
2109 /* allocate CORB/RIRB */
2110 if (!chip->single_cmd) {
2111 err = azx_alloc_cmd_io(chip);
2112 if (err < 0)
2113 goto errout;
2114 }
2115
2116 /* initialize streams */
2117 azx_init_stream(chip);
2118
2119 /* initialize chip */
2120 azx_init_pci(chip);
2121 azx_init_chip(chip);
2122
2123 /* codec detection */
2124 if (!chip->codec_mask) {
2125 snd_printk(KERN_ERR SFX "no codecs found!\n");
2126 err = -ENODEV;
2127 goto errout;
2128 }
2129
2130 err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops);
2131 if (err <0) {
2132 snd_printk(KERN_ERR SFX "Error creating device [card]!\n");
2133 goto errout;
2134 }
2135
2136 strcpy(card->driver, "HDA-Intel");
2137 strcpy(card->shortname, driver_short_names[chip->driver_type]);
2138 sprintf(card->longname, "%s at 0x%lx irq %i",
2139 card->shortname, chip->addr, chip->irq);
2140
2141 *rchip = chip;
2142 return 0;
2143
2144 errout:
2145 azx_free(chip);
2146 return err;
2147 }
2148
2149 static void power_down_all_codecs(struct azx *chip)
2150 {
2151 #ifdef CONFIG_SND_HDA_POWER_SAVE
2152 /* The codecs were powered up in snd_hda_codec_new().
2153 * Now all initialization done, so turn them down if possible
2154 */
2155 struct hda_codec *codec;
2156 list_for_each_entry(codec, &chip->bus->codec_list, list) {
2157 snd_hda_power_down(codec);
2158 }
2159 #endif
2160 }
2161
2162 static int __devinit azx_probe(struct pci_dev *pci,
2163 const struct pci_device_id *pci_id)
2164 {
2165 static int dev;
2166 struct snd_card *card;
2167 struct azx *chip;
2168 int err;
2169
2170 if (dev >= SNDRV_CARDS)
2171 return -ENODEV;
2172 if (!enable[dev]) {
2173 dev++;
2174 return -ENOENT;
2175 }
2176
2177 card = snd_card_new(index[dev], id[dev], THIS_MODULE, 0);
2178 if (!card) {
2179 snd_printk(KERN_ERR SFX "Error creating card!\n");
2180 return -ENOMEM;
2181 }
2182
2183 err = azx_create(card, pci, dev, pci_id->driver_data, &chip);
2184 if (err < 0) {
2185 snd_card_free(card);
2186 return err;
2187 }
2188 card->private_data = chip;
2189
2190 /* create codec instances */
2191 err = azx_codec_create(chip, model[dev], probe_mask[dev]);
2192 if (err < 0) {
2193 snd_card_free(card);
2194 return err;
2195 }
2196
2197 /* create PCM streams */
2198 err = azx_pcm_create(chip);
2199 if (err < 0) {
2200 snd_card_free(card);
2201 return err;
2202 }
2203
2204 /* create mixer controls */
2205 err = azx_mixer_create(chip);
2206 if (err < 0) {
2207 snd_card_free(card);
2208 return err;
2209 }
2210
2211 snd_card_set_dev(card, &pci->dev);
2212
2213 err = snd_card_register(card);
2214 if (err < 0) {
2215 snd_card_free(card);
2216 return err;
2217 }
2218
2219 pci_set_drvdata(pci, card);
2220 chip->running = 1;
2221 power_down_all_codecs(chip);
2222
2223 dev++;
2224 return err;
2225 }
2226
2227 static void __devexit azx_remove(struct pci_dev *pci)
2228 {
2229 snd_card_free(pci_get_drvdata(pci));
2230 pci_set_drvdata(pci, NULL);
2231 }
2232
2233 /* PCI IDs */
2234 static struct pci_device_id azx_ids[] = {
2235 /* ICH 6..10 */
2236 { PCI_DEVICE(0x8086, 0x2668), .driver_data = AZX_DRIVER_ICH },
2237 { PCI_DEVICE(0x8086, 0x27d8), .driver_data = AZX_DRIVER_ICH },
2238 { PCI_DEVICE(0x8086, 0x269a), .driver_data = AZX_DRIVER_ICH },
2239 { PCI_DEVICE(0x8086, 0x284b), .driver_data = AZX_DRIVER_ICH },
2240 { PCI_DEVICE(0x8086, 0x2911), .driver_data = AZX_DRIVER_ICH },
2241 { PCI_DEVICE(0x8086, 0x293e), .driver_data = AZX_DRIVER_ICH },
2242 { PCI_DEVICE(0x8086, 0x293f), .driver_data = AZX_DRIVER_ICH },
2243 { PCI_DEVICE(0x8086, 0x3a3e), .driver_data = AZX_DRIVER_ICH },
2244 { PCI_DEVICE(0x8086, 0x3a6e), .driver_data = AZX_DRIVER_ICH },
2245 /* SCH */
2246 { PCI_DEVICE(0x8086, 0x811b), .driver_data = AZX_DRIVER_SCH },
2247 /* ATI SB 450/600 */
2248 { PCI_DEVICE(0x1002, 0x437b), .driver_data = AZX_DRIVER_ATI },
2249 { PCI_DEVICE(0x1002, 0x4383), .driver_data = AZX_DRIVER_ATI },
2250 /* ATI HDMI */
2251 { PCI_DEVICE(0x1002, 0x793b), .driver_data = AZX_DRIVER_ATIHDMI },
2252 { PCI_DEVICE(0x1002, 0x7919), .driver_data = AZX_DRIVER_ATIHDMI },
2253 { PCI_DEVICE(0x1002, 0x960f), .driver_data = AZX_DRIVER_ATIHDMI },
2254 { PCI_DEVICE(0x1002, 0xaa00), .driver_data = AZX_DRIVER_ATIHDMI },
2255 { PCI_DEVICE(0x1002, 0xaa08), .driver_data = AZX_DRIVER_ATIHDMI },
2256 { PCI_DEVICE(0x1002, 0xaa10), .driver_data = AZX_DRIVER_ATIHDMI },
2257 { PCI_DEVICE(0x1002, 0xaa18), .driver_data = AZX_DRIVER_ATIHDMI },
2258 { PCI_DEVICE(0x1002, 0xaa20), .driver_data = AZX_DRIVER_ATIHDMI },
2259 { PCI_DEVICE(0x1002, 0xaa28), .driver_data = AZX_DRIVER_ATIHDMI },
2260 { PCI_DEVICE(0x1002, 0xaa30), .driver_data = AZX_DRIVER_ATIHDMI },
2261 { PCI_DEVICE(0x1002, 0xaa38), .driver_data = AZX_DRIVER_ATIHDMI },
2262 { PCI_DEVICE(0x1002, 0xaa40), .driver_data = AZX_DRIVER_ATIHDMI },
2263 { PCI_DEVICE(0x1002, 0xaa48), .driver_data = AZX_DRIVER_ATIHDMI },
2264 /* VIA VT8251/VT8237A */
2265 { PCI_DEVICE(0x1106, 0x3288), .driver_data = AZX_DRIVER_VIA },
2266 /* SIS966 */
2267 { PCI_DEVICE(0x1039, 0x7502), .driver_data = AZX_DRIVER_SIS },
2268 /* ULI M5461 */
2269 { PCI_DEVICE(0x10b9, 0x5461), .driver_data = AZX_DRIVER_ULI },
2270 /* NVIDIA MCP */
2271 { PCI_DEVICE(0x10de, 0x026c), .driver_data = AZX_DRIVER_NVIDIA },
2272 { PCI_DEVICE(0x10de, 0x0371), .driver_data = AZX_DRIVER_NVIDIA },
2273 { PCI_DEVICE(0x10de, 0x03e4), .driver_data = AZX_DRIVER_NVIDIA },
2274 { PCI_DEVICE(0x10de, 0x03f0), .driver_data = AZX_DRIVER_NVIDIA },
2275 { PCI_DEVICE(0x10de, 0x044a), .driver_data = AZX_DRIVER_NVIDIA },
2276 { PCI_DEVICE(0x10de, 0x044b), .driver_data = AZX_DRIVER_NVIDIA },
2277 { PCI_DEVICE(0x10de, 0x055c), .driver_data = AZX_DRIVER_NVIDIA },
2278 { PCI_DEVICE(0x10de, 0x055d), .driver_data = AZX_DRIVER_NVIDIA },
2279 { PCI_DEVICE(0x10de, 0x0774), .driver_data = AZX_DRIVER_NVIDIA },
2280 { PCI_DEVICE(0x10de, 0x0775), .driver_data = AZX_DRIVER_NVIDIA },
2281 { PCI_DEVICE(0x10de, 0x0776), .driver_data = AZX_DRIVER_NVIDIA },
2282 { PCI_DEVICE(0x10de, 0x0777), .driver_data = AZX_DRIVER_NVIDIA },
2283 { PCI_DEVICE(0x10de, 0x07fc), .driver_data = AZX_DRIVER_NVIDIA },
2284 { PCI_DEVICE(0x10de, 0x07fd), .driver_data = AZX_DRIVER_NVIDIA },
2285 { PCI_DEVICE(0x10de, 0x0ac0), .driver_data = AZX_DRIVER_NVIDIA },
2286 { PCI_DEVICE(0x10de, 0x0ac1), .driver_data = AZX_DRIVER_NVIDIA },
2287 { PCI_DEVICE(0x10de, 0x0ac2), .driver_data = AZX_DRIVER_NVIDIA },
2288 { PCI_DEVICE(0x10de, 0x0ac3), .driver_data = AZX_DRIVER_NVIDIA },
2289 { PCI_DEVICE(0x10de, 0x0bd4), .driver_data = AZX_DRIVER_NVIDIA },
2290 { PCI_DEVICE(0x10de, 0x0bd5), .driver_data = AZX_DRIVER_NVIDIA },
2291 { PCI_DEVICE(0x10de, 0x0bd6), .driver_data = AZX_DRIVER_NVIDIA },
2292 { PCI_DEVICE(0x10de, 0x0bd7), .driver_data = AZX_DRIVER_NVIDIA },
2293 /* Teradici */
2294 { PCI_DEVICE(0x6549, 0x1200), .driver_data = AZX_DRIVER_TERA },
2295 { 0, }
2296 };
2297 MODULE_DEVICE_TABLE(pci, azx_ids);
2298
2299 /* pci_driver definition */
2300 static struct pci_driver driver = {
2301 .name = "HDA Intel",
2302 .id_table = azx_ids,
2303 .probe = azx_probe,
2304 .remove = __devexit_p(azx_remove),
2305 #ifdef CONFIG_PM
2306 .suspend = azx_suspend,
2307 .resume = azx_resume,
2308 #endif
2309 };
2310
2311 static int __init alsa_card_azx_init(void)
2312 {
2313 return pci_register_driver(&driver);
2314 }
2315
2316 static void __exit alsa_card_azx_exit(void)
2317 {
2318 pci_unregister_driver(&driver);
2319 }
2320
2321 module_init(alsa_card_azx_init)
2322 module_exit(alsa_card_azx_exit)
Linux kernel - Deliverables
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